GroupDocs.Signature can generate QR codes in many popular formats and place them on PDF pages. Over 10 QR code types are supported and can be quickly integrated into Java applications. Use our product to sign documents with generated QR codes.
// Pass the document to a new Signature instance
Signature signature = new Signature("input.pdf");
// Use QrCodeSignOptions to add a QR code to the document
QrCodeSignOptions options = new QrCodeSignOptions("Text Content");
// Specify the signature type and position on the page
options.setEncodeType(QrCodeTypes.QR);
options.setLeft(50);
options.setTop(150);
// Save the file with the added QR code
signature.sign("output.pdf", options);
The GroupDocs.Signature for Java API supports signing all popular file formats. Generate, modify, search, verify, and delete different types of signatures.
GroupDocs.Signature supports signing with Text, Image, Barcode, QR Code, and Stamp signatures. Place them on any page of any supported document format. Manage document metadata with metadata signatures, and protect the content from unauthorized changes using digital certificates.
Ensure that all signatures in a document are valid with the verification procedure. Retrieve a complete list of signatures in a document using the built-in search feature.
Easily modify signature properties after signing. Adjust content, position, color, size, and other attributes as needed.
Delete unwanted signatures with ease. Various signature types, including digital certificates, can be programmatically removed from documents.
// Get the document that needs to be signed and pass it to Signature
Signature signature = new Signature("input.pdf");
// Use QR code options to provide text with the required information
QrCodeSignOptions signOptions = new QrCodeSignOptions("Archived on July 11, 2019");
// Set the relative position of the QR code on the page
signOptions.setVerticalAlignment(VerticalAlignment.Top);
signOptions.setHorizontalAlignment(HorizontalAlignment.Right);
// Set the signature padding
Padding padding = new Padding();
padding.setRight(20);
padding.setTop(20);
signOptions.setMargin(padding);
// Specify the color of the QR code
signOptions.setForeColor(Color.RED);
// Define the font options for the message
SignatureFont font = new SignatureFont();
font.setSize(12);
font.setFamilyName("Comic Sans MS");
signOptions.setFont(font);
// Customize the QR code background color and brush
Background background = new Background();
background.setColor(Color.GREEN);
background.setTransparency(0.5);
background.setBrush(new LinearGradientBrush(Color.GREEN, Color.DARK_GRAY, 0));
signOptions.setBackground(background);
// Add the QR code to the document
SignResult signResult = signature.sign("output.pdf", signOptions);
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Explore documentation, code samples, and community support to enhance your experience.
We offer a diverse selection of signature features and advanced operations
Enhance all popular file formats with generated QR codes using the Java API. Add 2D barcode data for easy scanning and processing.
